Add Wireless Charging to (Almost) Any Smartphone or Tablet

Flagship mobile devices often come with wireless charging capability, but there’s an easy way to add (Qi) wireless charging to almost any smartphone, or possibly tablet, thanks to wireless charging receivers that simply connect to the micro USB port of your mobile device, and can be purchased for as low as $7 on Aliexpress, Ebay, DX.com, etc… I’ve also seen Adafruit made a Qi Wireless Receiver module for Arduino with a 2.54mm pitch connector.

Qi_Wireless_Charger_ReceiverThey come in various sizes and shapes, but they’re all extra thin (1 mm), with a micro USB connector oriented upwards or downwards depending on your mode, and a thin cable, that allows you to place it inside your phone between the battery and the phone cover as shown in the picture below. It’s not always possible however, as for example the receiver would cover my phone’s rear camera lens, but you could always attach it to a protective cover, or a car phone holder.

Wireless_Charger_Receiver_Phone

Once the installation is complete, you are ready to charge your phone with a wireless charger.

Specifications ARE different between modules, but typically look like:

  • Dimensions – 62 x 45 x 1.1mm
  • Net weight – 2.5g
  • Input Power – 3.5W
  • Output – DC5V/650mA (Average)
  • Charging current – DC5V/500mA (Average)
  • Working life – 4000 charges

Via Cngadget.info

Share this:

Support CNX Software! Donate via PayPal or cryptocurrencies, become a Patron on Patreon, or buy review samples

ROCK Pi 4C Plus
Subscribe
Notify of
guest
The comment form collects your name, email and content to allow us keep track of the comments placed on the website. Please read and accept our website Terms and Privacy Policy to post a comment.
7 Comments
oldest
newest
Brian
Brian
7 years ago

At that price it would be good if they could build this directly into replaceable batteries, e.g. Nokia BL5C.

Harley
Harley
7 years ago

hmm, wondering if they will make models for iPhones and iPads too

The Cageybee
The Cageybee
7 years ago

It’s gonna take a while to charge a phone at 500ma. My old galaxy ace 2 had a 700ma charger. My galaxy s4 has a 2amp charger.

Al
Al
7 years ago

@The Cageybee
All night/ 6 -8 hours

onebir
onebir
7 years ago

The charge transmitters pads got a lot cheaper recently too. I have a no-brand android phone with a broken micro USB socket – can’t get it fixed here. PIA swapping the battery.

I think some of these charge receivers fit directly onto the battery contacts. Does anyone know how to figure out which ones might be compatible?

onebir
onebir
7 years ago

Sadly it looks like some phones have special electrodes for these charging pads & otherwise you need to use the micro USB as in CNX’s article. I couldn’t find any charging pads with electroded designed to slip between the contacts of the battery and the phone. Would that actually work anyway, or does the phone need some extra electronics to cope with a charging current?

Advertisement